Patent GB-409009-A (GB)
Title: Process for the manufacture of dispersions of conversion products of rubber
IPC: C09D115/00
Filed: 1932-10-21
Abstract: Coating-compositions are obtained by bringing together a sulphur-free conversion product, derivative, or substitution product of rubber, which is solid at ordinary temperatures, with a drying oil or resinous condensation product of a drying nature, and converting the mass into an aqueous emulsion.  There may be added volatile solvents, drying agents, stabilizing agents, pigments, fillers, plasticizing or softening agents, rubber latex, or resins.  The coating-material is suitable for dressing leather, coating or printing paper, paste board, textiles, and wood, for painting wall surfaces, and for water-proofing textile fabrics. The following examples are given: (1) chlorinated rubber is dissolved in linseed oil with the addition of a siccative, and emulsified in water in the presence of casein, borax, and ammonia; (2) chlorinated rubber is dissolved in linseed oil and China wood oil with the addition of a siccative, and mixed with iron oxide pigment ground in castor oil.  The mass is then emulsified in water in presence of casein, borax, and ammonia; (3) a conversion product obtained by acting on rubber solution with boron fluoride in the presence of cresol is homogenized with linseed oil and a siccative and emulsified in water in the presence of casein, ammonium borate, and ammonia; (4) chlorinated rubber is dissolved in a condensation product obtained from castor oil, glycerine, and phthalic anhydride, with the addition of solvent naphtha, dibutyl phthalate, and siccative solution, and emulsified in an aqueous solution of casein, ammonium borate, and ammonia, to which is added a solution of trichlorphenol in ethanolamine.  Iron oxide pigment is incorporated and the emulsion diluted; (5) a solution containing chlorinated rubber, a condensation product obtained from linseed oil, glycerine, and phthalic anhydride, tricresyl phosphate, solvent naphtha, and a siccative, is emulsified in an aqueous solution containing casein, ammonium borate, ammonia, trichlorphenol, and ethanolamine.  Iron oxide pigment is added and the product diluted; (6) a solution containing chlorinated rubber, a condensation product obtained from China wood oil, glycerine, and phthalic anhydride, dibutyl phthalate, solvent naphtha, and a siccative, is emulsified with an aqueous solution containing casein, ammonium borate, ammonia, trichlorphenol, and ethanolamine.ALSO:Coating-compositions are obtained by bringing together a sulphur-free conversion product, derivative, or substitution product of rubber, which is solid at ordinary temperature, with a drying oil or resinous condensation product of a drying nature, and converting the mass into an aqueous emulsion.  As rubber conversion products, chlorinated rubber and the product obtained by acting on rubber solution with boron fluoride in the presence of cresol are mentioned.  Specified drying oils or resinous condensation products are linseed oil, China wood oil, a condensation product from castor oil, glycerine, and phthalic anhydride, a condensation product from linseed oil, glycerine, and phthalic anhydride, and a condensation product from China wood oil, glycerine, and phthalic anhydride.